The Hertfordshire-based firm will take on staff through a TUPE (Transfer of Undertakings Protection of Employment Regulations) transfer for a new contract with Wycombe District Council, and recruit another two people for housing work in Hemel Hempstead.
Wycombe District Council has collaborated with Chiltern and South Bucks District Councils to appoint John O'Conner to a five-year deal maintaining parks and open spaces in the area, with the exception of High Wycombe town.
The contract begins on 1 April and will involve staff transferring from contractors including ISS Waterers and Verdant Group.
Business development manager Darren Kilby told HW the work was a "key contract" the firm had been "really focused on winning".
"We are buying a fair amount of equipment for the work," he revealed. The contract could be extended to 2018.
Meanwhile, Hightown Praetorian & Churches housing association has also appointed John O'Conner to carry out grounds maintenance across 30 estates in a deal starting on 6 April. The two-year contract may be extended by a further year.
"It is a medium-sized contract," explained Kilby. "We'll probably recruit two new members of staff.
"There is still work out there to be won."